Bearing support for rotary ventilators, chimney tops, and the like



Feb 12 i924;

- l J. sYLvAN BEARING SUPPORT FOR ROTARY` VENTILATORS CHIMNEY TOPS, AND THE LIKE Filed Jan.' 19251 bodying my Patented Feb. l2, 1924..

JOSEPH SYLVAIN, OF CHICAGO, ILLINOIS.

BEARING Application led January 3, 1921.

To all whom t may concern.'

Be it known that I, Josnri-r SrLvAN, a citizen of the United States, and a resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Bearing Supports for Rotary Ventilators, Chimney Tops, and the like; and'I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to improvements in bearing supports for rotary ventilators, chimneytops and the like, and consists of the matters hereinafter described and more particularly pointed out in the appended claims.

lOne of the objects of the present invention is to provide a bearing support of the kind above mentioned, which may be made, sold and shipped as an entirety ready to be embodied in or applied to any make, of rotary yventilator or chimney top, for the purpose ofproviding the bearing and support for the rotary part or hood of said ventilator or chimney top with reference to the stationary part or stem thereof.

A further object of the invention is to so construct the bearing support that the same may be adjusted to provide for the exact perpendicularity of the rotating hood with reference to the stationary stem, so that said hood may be properly balanced to readily changeits position to accord with any slight shifting wind. j

These objects of the invention, together with the many advantages thereof, will more fully appear as I proceed with my specification.

In the drawings Figure 1 is a vertical sectional view through a conventional form of rotary ventilator, to which. my improved bearing support has been applied.

Figure 2 is a view in side elevation, on an enlarged scale, ofa bearing support emj invention.

vFigure 3 is a top-plan view thereof.

Figure 4 is a horizontal section through the same, on the line 4-4 of Figure 2.

Figure 5 is a horizontal detail sectional view taken on the line 5-5 of Figure 2.

Referring now in detail to that embodiment of the inventionillustrated in thek ac- SUPPORT FOR ROTARY VENTILATORS, CHIMNEY TOPS,

AND THE LIKE.

Serial No. 434,449.

companying drawings :-10 indicates the bottom or stationary ring of the bearing support, and 11 the top or rotating ring thereof. As shown, the bottom ring 10 which is made of T iron with its web extended horizontally outward, is of a diameter smaller than that of the top ring, which is made of angle iron with one of its flanges extended horizontally outward and arranged in a plane slightly above the web of the ring 10. 12 indicates a plurality of band iron straps, each of which is fixed at its mid portion 13 to the inner face of the stationary ring- 10 at arcuately spaced distances apart. Each strap includes a horizontally disposed top arm 14 and a downwardly inclined bottom arm'l, both of said arms extending radially inward toward the axis of the ring 10. rEhe bottom arms 15, of said straps, are twisted to bring their bottom ends into the planes of radial flanges or ears 16, on a bearing block 17, which has a downwardly and inwardly tapered central hole 18 providing a seat for the bottom end of an upright tubular standard 19.' Preferably the ears 16 of said bearing block, are provided with -shallow recesses l20, in which the associated ends of the arms 15 engage and are secured thereto by rivets 21 passing through said arms and ears. The top arms 14 of said straps 12, are likewise twisted to bring their inner ends into the plane of radial flanges or ears 22 on a collar 23 havin a central hole 24 of a diameter greater than that of the standard 19 which extends through the same. The said ears v22 of said collar also have shallow recesses 25, in which the inner ends of the arms 14 engage and are secured thereto by rivets 26 passing through said arms and flanges. Intermediate the flanges 22, said collar is provided with radially arranged set screws 27, which may be threaded through the collar to engage and move the standard 19 laterally, into the desired adjusted perpendicular position, the bottom end of said standard shifting or moving in its, seat in the bearing block 17 to accommodate for this adjustment. Secured to the standard 19, jus above and substantially resting on the collar 23, is a second but smaller collar 28.

29 indicates a plurality of band iron straps each of which is fixed at its mid portion 30 to the inner face of the `rotating ring 11 at arcuately spaced distances apart. Each strap includes ,a horizontally Ydisposed Citi bottom arm 31 and an upwardy inclined top arm 32, both of said arms extending radially inward toward the axis of the ring l1. The said arms 31 are twisted to bring their inner ends into the planes of radial flanges or ears 33 on a bearing collar 34 surrounding the standard 19 just above the collar 23 before referred to. ln said collar 311 is provided a downwardly facing raceway for ball bearings 35, which engage upon the collar 23 in a manner providing for both the lateral and the end thrust of the standard at this point. rl`he ears 33 of said collar 34, have shallow recesses 332L to receive the inner ends or' the arms 31 which are riveted thereto. rlhe arms 32 are twisted to bring their inner top ends into the planes of downwardly and outwardly extending radial ears 36 on another bearing collar 37 through which the top end of the standard 19 extends. Said ears 36 have shallow recesses 36a to receive the inner top ends of said arms which are riveted thereto. To the standard 19 just below the bearing collar 37, is secured a smaller vcoacting collar 38, and in said bearing collar 37, is provided a downwardly facing raceway for ball bearings 39 which engage upon the collar 38, in a manner providing for both the lateral and end thrust of the standard at this point. Each bearing collar 34-37 slightly overhangs the associated thrust collar 28`38 to prevent the entrance of dust into the raceways for the ball bearings, which raceways are preferably packed with a lubricant.

A pin 40 extends through the standard 19 above the bearing block 37, while a second pin 41, extends through said standard just below the collar 23, said pins holding the several parts in position against coming apart with consequent loss of the ball bearings, so that the said bearing supports may be fully assembled and safely shipped to the place of installation, ready to be applied to a rotary ventilator or chimney top.

rlhe rings 10 and 11 are provided with holes 10n and 11a (see Fig. 2) respectively for the rivets or bolts by means of which said rings may be attached to the associated parts of a ventilator. In Figure 1, d5 indicates the stationary tubular stem of a ventilator, and 46 indicates the rotary hood thereof, which hood has a discharge opening l, and a vane 43 on its top.

To apply my improved supporting bearing to such a conventional tvpe of rotary ventilator as above described, and the collar 38 would be removed so that the top ring 11, and associated arms could be removed from the bottom g and arms.

stem until the web of said ring would rest upon the top end thereof Holes kwould then be 'made in the stem to register with the holes 10a in the ring l0, after which said stem and ring would be riveted together. The ring 11 would likewise be at tached to the bottom end of the hood 46, after which the collar 33 and pin 4:0 would be replaced to complete the installation and erection. lt might be found that the stem l5 is not exactly perpendicular, so that the hood would swing under its own weight into a position wherein it would not respond or shift under a light wind. Under such conditions, the set screws 27 would be adjusted in the collar 23 to shift the standard 19 laterally and bringit into perpendicular plane, when the hood would be so balanced as to respond to any light wind or shift in the wind, to turn its discharge opening in the right direction. h

lt is apparent that the improved bearing support has many advantages. lt may be fully assembled in the shop, and shipped in this condition to the place of installation, without the danger` bearing support may be adjusted to accomodate for ventilator stems which are out of plumb so that the rotary hood thereof will readily respond to light winds. Of course parts may be made 1n the rings and other sizes to suit ventilators of di'erent heights and diameters.

While in describing my invention, I have referred to certain details of mechanical construction, form, and arrangement of parts, l do not wish to be limited thereto eX- cept as may be pointed outin the appended claims.

l claim as my invention 1. A bearing support for rotary ventilators and the like, comprising a bottom rin and a top ring, a central standard carried by the bottom ring, adjustable means on said bottom ring providing for the lateral support of said standard, vertically spaced collars secured to said standard, and bearing sleeves carried by the top ring i'or engaging said standard and coacting with the' collars thereon to provide a rotative bearing for the top ring with respect to the bottom ring.

2. A bearing support for rotary ventilatorsy and the like, comprising a bottom ring and a top ring, a central standard, means carried by the bottom ring providing a seat for a part of said standard, a laterally ad justable guide engaged with said standard at a point spaced from said seat, collars on said standard, and bearing sleeves carried by the top ring for engaging said standard and coacting with the collars thereon to provide a rotative bearing for the top ring with respect to the bottom ring.

hearing support for rotary ventilators and the like, comprising a bottom ring an a top ring, a central standard, means carried by the bottoni ring providing a of coming apart. The

tapered seat for the bottom end of said standard, means also carried by said bottom ring providing a lateral adjustment for said standard at a point spaced above said seat, collars on said standard, and bearing sleeves carried by the top ring for engaging said standard and coacting with the collars thereon to provide a rotative bearing for the top ring with respect to the bottom ring.

et. A bearing support for rotary ventilators and the like, comprising a bottom ring and a top ring, radially arranged straps secured between their ends to said bottom ring, said straps being bent to provide inwardly extending top and bottom arms, a block having a tapered opening, secured to said bottom arms and providing a seat for the bottom end of the standard, a collar secured to the top arms, adjusting screws carried by said collar providing a laterally adjustable support for said standard, bearing collars fixed to said standard above the last mentioned collar, radially disposed straps secured between their ends to said top ring, the ends of said arms being bent inwardly, and bearing sleeves secured to said arms for engaging the collars on said standard.

In testimony that l claim the foregoing as my invention, I aliix my signature in the presence of tWo Witnesses, this 16th day of December, A. D. 1920.

JOSEPH SYLVAN.

Witnesses:

T. H. ALFREDS, CHRISTINA DEANs. 

